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Old 11-12-2018, 08:19 AM   #1
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Location: Powhatan, VA
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Question about water filtration

It is time to replace the cartridge in the standard whole coach filtration system. I have been reading up on the different types, and the general consensus is to not use a Carbon filter in front of water going into the fresh tank as you would like some chlorine in there to keep the risk of "bad things" growing at a minimum.

Is the plumbing run so that when the water goes from the holding tank to the coach it runs through the filtration system? Or do you only get filtration if you are connected to the city water supply?

Also, some comments have been made about filters that can drastically reduce flow - certainly don't want that

The two I am looking at are

Watts MAXVOC-975 C-MAX 10" VOC Water Filter (what comes with the unit), and Pentek CFB-PB10 Filter-10" Carbon Filter.

Jeff & Tracie (Stella & Hoonah - the rescue mutts)
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2013 Jeep Wrangler Sport
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Old 11-12-2018, 01:59 PM   #2
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The water goes from the city water connection through the filter, then either the tank or coach.

Many people do it different but we use the same filter that comes with the coach. The water needs to be filtered before going into the system to keep the crud out of the tank, check valves, mixing valves, and faucets. In early spring we had a new filter plug with rust in an Ohio State Park. Glad all that crud didn't go into our system. I don't disagree with you on the chlorine, although we just sanitize the tank and change the filter twice a year.

We leave both the city water and the pump on all the time we are in the coach with autofill on. This eliminates any issue with water pressure in the coach because of the filter. The pump will come on and draw water from the tank to supplement the city water flow if necessary.

The filter does slow the water into the coach. Most noticeable when the campground water pressure is low or when the filter starts to get older.

Paul and Christy
2017 Dutch Star 4018, 2017 Jeep Wrangler
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Old 11-13-2018, 09:49 AM   #3
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Location: Full Timing From SW Florida
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I keep a couple new filters in my wet bay. They are just regular 10" WH filters that you can purchase almost anywhere and usually run about $5 or $6 each. We are full time and travel a lot so I like to change mine out about every 3 months or so. My main concern is to keep it filtered so my expensive frig filter doesn't need replaced more often.

We might use a campground's water if it smells and looks okay for making a pot of coffee, and of course it is what makes our ice. However for drinking we use bottled.

We always use a water regulator w/gauge on any city water connection. In over 80% of the campground we have stayed in our pressure is 60psi or above.
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Old 11-13-2018, 01:59 PM   #4
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FLJOE, I have have yet to have the camp ground pressure less then 60 PSI, Iím sure I will someday.

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Old 11-13-2018, 02:12 PM   #5
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I use the same type filters as FLJOE and also throw in a couple of shots of bleach in the canister.
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Old 11-13-2018, 03:07 PM   #6
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I have the standard whole house filter that does a good job. I sometimes install a blue Camco inline filter if I know the campground has issues. The campground we use on the Texas coast does, it has a good bit of sand. I also installed a RO cartridge with separate spigot at the sink. The water from the RO is used for coffee and drinking. I installed a RO cartridge in the house in June, we have hard water. The water from the faucet at the house is 250 ppm with the RO 25 ppm and after 4 months still 50 ppm, I will change it at 100 ppm. RO in the MH should last a year with our use.

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